Vols. 45, 47, 48, 50 and 52 were published as "Quarterly issue, v. 1-5, 1903-10", designed as a medium for the early publication of the results of researches and for reports of a preliminary nature; this form of publication was discontinued after v. 52
MSRLSI copy 39088009750118-0266 has bookplate: Smithsonian Institution Libraries, Gift of Nancy M. Prichard
On page 7 of the article titled "Solar-Constant Periodicities", the following text was printed in the gutter and was cropped: "Table 1C. - Example of a computation for 6 1/15 months."